ISO/TS TECHNICAL SPECIFICATION 20646 Firstedition 2014-02-01 Corrected version 2014-02-15 Ergonomics guidelines for the optimization of musculoskeletal workload Lignes directrices ergonomiques pour I'amelioration des charges de travailmusculo-squelettiques Reference number IS0/TS20646:2014(E) TSO @IS02014 IS0/TS 20646:2014(E) COPYRIGHTPROTECTEDDOCUMENT ISO2014 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56.CH-1211 Geneva 20 Tel. + 4122 749 01 11 Fax +41 22 749 09 47 E-mail copyright@iso.org Webwww.iso.org Published in Switzerland ii @ IS0 2014- All rights reserved IS0/TS20646:2014(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. .1 2 Terms and definitions ..1 3 Generalguidingprinciples. .2 3.1BasicprinciplestoimproveMSWL .2 3.2 Basicframeworkand responsibilities of MswL-improvementactivities 2 3.3 ProcessesforMsWLriskassessmentincludingimplementationofriskreductionactivity3 AnnexA (informative)Scheduleformforprinciples,plan,andimplementation AnnexB (informative)Checklistforhazardidentificationconcerningmusculoskeletalworkload.8 Annex C (informative)Action-oriented checklist .12 AnnexD (informative) Questionnairefor monitoringthe effects of risk reduction measures concerning musculoskeletal workloads .15 AnnexE(informative)Evaluationformfortheriskreductionmeasures ..17 Bibliography .18 @ IS0 2014 -All rights reserved iii